1.Dual LED Digital Display & 36 hours Playtime: Wireless earbuds with dual power display show the remaining battery of charging case by the number on the screen, and the charging status of ear buds by up and down of LED bar, which will fade when headphones are fully charged. bluetooth headphones with 650mAh charging case have up to 36hrs of listening time with 5 additional charges (6hrs in buds/30hrs in case), you can get the extra electricity it takes to keep your music going. 2. & USB Type-C Charge: Bluetooth earbuds support wireless charging and Type-C charge. One is just putting the case on the wireless charging pad (not included) with the LED display facing up. Besides, wireless earbuds with earhooks come equipped with Type-C cable to charge the case. Both convenient charging methods improve battery life of wireless headphones to 1 hour on 15mins charge. The number of battery display on the left flashes when the charging case is being charged. 3.One Button Control & Auto On/Connect: The multi-function button on each earphone can manage audio play or calls effortlessly. Skip songs, launch music and answer calls simply by tapping your earbuds wireless bluetooth, so you don't need your device to adjust the music. Automatically power on and connect to your device when simply removing the headphones wireless bluetooth from the case, for a quick and easy operation. With earbuds seated in the case, wireless earphones shut down and recharge. 4.High-fidelity Audio & Crystal-clear Call: Bluetooth headsets adopt 11mm drivers and volume-optimized active EQ keep audio clear and balanced at any volume, and the high compliance diaphragm reproduce a rich bass range, also enhances sound quality and reduces distortion. Mics work together to reject noises around you, keeping your voice sounding clear for every call to precisely for hands- calls and Speak-to-Chat detection.